Filling block and honeycomb work



Sept. 12, 1939 A. sqHAcK ET'AL. 2,172,714

FILLING BLOCK AND HONEYCOMB, WQRK FOR REGENERATDRS I 'Fild Aug 11," 1938 Im/enfor' y v gag/AX Patented Sept. 12, 1939 UNITED STATES PATENT OFFICE FILLING BLOCK AND HONEYCOMB WORK FOR REGENERATORS Rhondorf, Germany Application August 11, 1938, Serial No. 224,392 In Germany September 9, 1937 3 Claims.

The known multiperforated blocks for regenerators have separate ducts extending through them, which do not communicate with one another. Only in some constructional forms the s ducts are interconnected at the end faces of the courses of blocks by transverse passages, through which, on one duct becoming stopped up, the gases can pass into the adjacent ducts.

The present invention relates to a multiper- 10 forated block, the novel feature of Which is that the ducts extending through them are interconnected by longitudinal slots extending throughout their length, for the purpose of increased radiation in the hottest layers, a better 15 gas distribution and a favourable heat transmission. The invention also relates to honeycomb work built up wholly or in part from such blocks.

In the multiperforated blocks according to 20 the invention the ducts may all be interconnected by longitudinal slots or they may be interconnected in groups or only some of the ducts may be interconnected by longitudinal slots.

If, when building up honeycomb work in accordance with the invention, it is not desired to use the described multiperforated blocks throughout, these blocks will be preferably built in in those parts which are particularly liable to become stopped up. 7

30 Referring to the accompanying drawing- Figures 1 and 1a. are a sectional elevation and a plan view partly in section respectively of one form of construction of the improved multiperforated block;

Figures 2 and 2a are a sectional elevation and a plan view partly in section respectively of another form of construction;

Figures 3 and 3a are a sectional elevation and a plan view partly in section respectively of a multiperforated block with small ducts connected together in groups;

Figures 4 and 4d are a sectional elevation and a plan view, partly in section, respectively, of a block in which. the outermost ducts are con- 45 nected together in groups;

Figures 5 and 5a are a sectional elevation and a plan view, partly in section, respectively, of a block in which some of the outermost ducts are connected with the centre duct by slots;

Figures 6 and 6a are a sectional elevation and a plan view, partly in section, respectively, of a block in which all the ducts are connected together by slots; I

Figure '7 is a sectional elevation of a honey- 55 comb work comprising two zones of comparatively large and small ducts respectively, and

Figures 7a and 7b are plan views, partly in section, taken across the two zones respectively.

In all the figures the ducts in the blocks bear the reference I and the longitudinal slots the reference 2. The ducts i may be so distributed over the cross-section of the block that the wall thicknesses of the block will be substantially equal to one another. For placing them together to form the honeycomb work the blocks are provided in a known manner at their end faces with spigot and socket.

The multiperforated blocks shown in Figs. 4 and'5, in which the ducts are not all interconnected by longitudinal slots, are, when the honeycomb work is being built up, preferably turned with respect to one another before being superposed, in order to obtain a better equalization.

In the multiperforated block according to the invention, through the connections between the individual ducts being uninterrupted in the direction of flow of the gases greatly widened layers of gas are formed, which considerably increase the heat transfer by radiation. The continuous longitudinal slots according to the invention also bring about a better'gasdistribution through the equalization of the flow in the horizontal direction. In cases of obstruction of the ducts the longitudinal slots provide the possibility of equalization throughout the length of the block. 'At the same time the multiperforated block is rendered free from strain, so that the danger of the blocks cracking is greatly reduced.

The blocks shown in Figs. 1,2, 4, 5 and 6 have channels in their :outer surfaces, which, when they are placed together in a layer, together form further ducts. In order to connect up these ducts as well to the system of ducts, the end faces of the blocks may be provided with horizontal communicating passages in the form of grooves which connect the ducts between the blocks at intervals with the ducts in the blocks.

What is claimed is l. A block for regenerators, having a plurality of ducts extending through it and continuous longitudinal slots interconnecting the ducts.

2. A block for regenerators, having a plurality of ducts extending through it and continuous longitudinal slots interconnecting the ducts in groups. I

3. Honeycomb work for regenerators, built up of blocks having a plurality of ducts extending through them and continuous longitudinal slots interconnecting the ducts.

ALFRED SCI-IACK. JENNY POHL, GEB. HOHL, Ewecutriac of Eduard Pohl, Deceased. 

